20745522021

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3011}}^1\times {\mathrm{4621}}^1$

素因数の和:7713

約数の個数: 32

約数和(自身を含む): 32075053056

約数和(自身を除く): 11329531035

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 3011, 4621, 9033, 13863, 21077, 32347, 63231, 97041, 213781, 328091, 641343, 984273, 1496467, 2296637, 4489401, 6889911, 13913831, 41741493, 97396817, 292190451, 987882001, 2963646003, 6915174007, 20745522021]

約数ペア:

[(1, 20745522021), (3, 6915174007), (7, 2963646003), (21, 987882001), (71, 292190451), (213, 97396817), (497, 41741493), (1491, 13913831), (3011, 6889911), (4621, 4489401), (9033, 2296637), (13863, 1496467), (21077, 984273), (32347, 641343), (63231, 328091), (97041, 213781)]